And the main reason: people don’t like the risks i... @QuipTalk

The main reason why people don't like CEXes is because of the risks involved. The lack of liquidity onchain means that the process of swapping tokens is slower, more expensive, and less secure. However, when we look at it pragmatically, it is still usually cheaper to use a CEX such as Binance, even when taking into account the withdrawal fees. This is because CEXes offer better liquidity, faster processing times, and more security than decentralized exchanges. Additionally, CEXes also have a variety of other features such as trading bots, margin trading, and advanced order types which make them attractive to traders. Ultimately, the choice of whether to use a CEX or a DEX will depend on the individual trader's risk tolerance and trading goals.

Not arguing those points but, pragmatically speaking, the swap the OP described is still probably cheaper on Binance including withdrawal fees